Author Topic: siglent sdg1025 generator no output  (Read 641 times)

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Offline mrcurlymanTopic starter

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siglent sdg1025 generator no output
« on: September 17, 2023, 09:36:19 pm »
Hello. I have a sdg1025 signal generator with no output on either channel. everything on the screen looks normal, it passes its self-test, according to the service manual all voltages on the board are correct except for TA15 and TA16. The manual says they should be 1.5v (sign wave). Im only have 800mv there is a sign wave but not at 1.5v. Anyone seen this type of problem? Thanks in advance
 

Online TimFox

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Re: siglent sdg1025 generator no output
« Reply #1 on: September 17, 2023, 09:44:47 pm »
Could you re-phrase your description of the actual output you are getting?
Your title says "no output", but your description awkwardly describes a substandard output.
In the unit, what is between the test points (TA15 and TA16) and the output?
« Last Edit: September 17, 2023, 09:46:46 pm by TimFox »
 

Offline Macbeth

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Re: siglent sdg1025 generator no output
« Reply #2 on: September 17, 2023, 10:19:46 pm »
Are you using Hi-Z or 50 ohm output?
 

Offline mrcurlymanTopic starter

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Re: siglent sdg1025 generator no output
« Reply #3 on: September 17, 2023, 11:46:47 pm »
I get nothing on either HI-Z or 50ohm
 

Offline mrcurlymanTopic starter

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Re: siglent sdg1025 generator no output
« Reply #4 on: September 17, 2023, 11:50:34 pm »
Im getting nothing out the front connectors. I not sure what's in-between the test points and the outputs Im looking for a schematic now
 

Online tautech

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Re: siglent sdg1025 generator no output
« Reply #5 on: September 17, 2023, 11:53:54 pm »
Everything you need to repair it can be found in this thread:
https://www.eevblog.com/forum/testgear/the-sdg1000-and-sdg800-thread/
Avid Rabid Hobbyist.
Some stuff seen @ Siglent HQ cannot be shared.
 
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